How many joules would be released into liquid phase
Ethanol (C2H5OH) is the alcohol found inintoxicating beverages. It has a heat of vaporization ofapproximately 39.0 kJ/mol. How many joules would be released when42.0 g of ethanol vapor condensed into the liquid phase?
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A normal population has a mean of 73 and a standard deviation of 6. You select a sample of 40. Compute the probability the sample mean is (Round z values to 2 decimal places and final answers to 4 decimal places):
Neglecting friction and rolling resistance, determine the velocity of the flatcar when the cars are moving at constant speeds.
If the tension in the string is zero when the rock is at its highest point (so that the string just barely goes slack), what is the tension when the rock is at the bottom?
Researchers gathered data on cholesterol levels and performance on a stress test on a treadmill from a sample of patients. The mean cholesterol score was 112 and the mean stress test score was 89.
As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. the piston is working against a pressure of 0.5 atm. The final volume of the system is 58 L.
The pulse rates for 13 adult women were as follows. Construct a 0.98 confidence interval for the mean pulse rate. (Give your answers correct to one decimal place)
Assuming that the shear modulus of elasticity is G=80GPa, determine the maximum torque Tmax that can be applied to the shaft.
Sodium alkylbenzene sulfonate(C18H29SO3Na) is often used as asynthetic detergent. This ingredient helps prevent scale buildup in"hard" water applications.
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